This roller coaster would use more than gravity and track design to determine its thrill and fright level. The riders themselves, by accelerating or braking, could select the velocities throughout the ride, after the first hill.

The separate cars would probably be family sized with four seats and
one pair or four (result being the average) of throttle and brake pedals. The desired speed would be communicated to linear induction motors and laser sensors in the track. Of course the track would be designed to give a safe, comfortable ride when run at the maximum or minimum speed, and the cars would depart at intervals that would eliminate the chance that a thrill-seeker would catch up to a namby-pamby.

Even slow coasting would be exciting, as when seemingly tipping over on a highly banked turn, or when barely making it over an inside loop.

Ticket prices for the namby-pambies should be higher (charged at the completion of the ride) because they would delay the next thrill-seeker from taking to the track and diminish the capacity of the ride, costing the operator revenue.